<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<script>
			//1. 算数运算符 + - * / % ++ --
			//2. 字符串连接 +
			//3. 关系运算符> >=< <= == === != !==
			var a = 123;
			var b = "123";
			console.log(a==b);
			console.log(a===b);
			//4.赋值运算
			//= += *= /= %=
			
			//5.逻辑运算符
			//&& 与
			//|| 或
			//！取反
			//6.逻辑条件符
			//
			var raining
		</script>
	</body>
</html>
